We're dividing 20599180 by 957 
The aim is to understand the frequency of 957 in 20599180.

Let's proceed to step 1:
957 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 957

Moving on to step 2:
If we divide 20 by 957, we get 0 and a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Append the next digit (5) from the dividend to 20 and continue with: 205 / 957

Step 3:
When dividing 205 by 957, we get 0 with a remainder of 205.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 205 leaves us with 205.
Fetch the next digit (9) from the dividend, attach it to 205 and continue: 2059 / 957

Step 4:
957 can be fit into 2059 2 times, resulting in a remainder of 145.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 145 after subtracting 1914 from 2059.
Grab the next digit (9) from the dividend, add it to 145, then carry on: 1459 / 957

On to step 5:
If we divide 1459 by 957, we get 1 and a remainder of 502.
The next digit of our result is 1. 
Result so far: 21.0
The remainder is 502 after subtracting 957 from 1459.
Take the next digit (1) from the dividend and append it to 502, then repeat: 5021 / 957

Moving on to step 6:
When dividing 5021 by 957, we get 5 with a remainder of 236.
Record the quotient 5 as the next digit in the result. 
Result so far: 215.0
If we take 4785 away from 5021, we end up with 236.
Grab the next digit (8) from the dividend, add it to 236, then carry on: 2368 / 957

On to step 7:
957 can be fit into 2368 2 times, resulting in a remainder of 454.
Write down 2 as next digit of the result. 
Result so far: 2152.0
If we subtract 1914 from 2368, we get 454.
Take the next digit (0) from the dividend and append it to 454, then repeat: 4540 / 957

Going ahead to step 8:
957 can be fit into 4540 4 times, resulting in a remainder of 712.
Record the quotient 4 as the next digit in the result. 
Result so far: 21524.0
The remainder is 712 after subtracting 3828 from 4540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

Let's proceed to step 9:
When dividing 7120 by 957, we get 7 with a remainder of 421.
The number 7 becomes the next digit in our result. 
Result so far: 21524.7
Deduct 6699 from 7120 and we're left with 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

Going ahead to step 10:
When dividing 4210 by 957, we get 4 with a remainder of 382.
The next digit of our result is 4. 
Result so far: 21524.74
The remainder is 382 after subtracting 3828 from 4210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Step 11:
957 goes into 3820 3 times with a remainder of 949.
Write down 3 as next digit of the result. 
Result so far: 21524.743
Deduct 2871 from 3820 and we're left with 949.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9490, and continue the process.

Advancing to step 12:
957 goes into 9490 9 times with a remainder of 877.
Write down 9 as next digit of the result. 
Result so far: 21524.7439
Deduct 8613 from 9490 and we're left with 877.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8770, and continue the process.

Going ahead to step 13:
If we divide 8770 by 957, we get 9 and a remainder of 157.
The number 9 becomes the next digit in our result. 
Result so far: 21524.74399
If we take 8613 away from 8770, we end up with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

The final outcome is 21524.74399, with a leftover of 0.000157.